Improvement in car-brakes



UNITED STATES PATENT QEEICE.

JOHN FREDERICK BRODE, OF MEMPHIS, TENNESSEE.A

IMPROVEMENT IN CAR-BRAKES.

Specification forming part of Letters Patent No. 121,150, dated November2l, 1871.

To all whom 1f-may concern:

Be it kn own that I, J oEN FREDERICK BRODE, of Memphis, in the county ofShelby and State of Tennessee, have invented a new and valuableImprovement in Car-Brakes; and I do hereby de- Clare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawing makinga part of this specification, and to the letters and gures of referencemarked thereon. p

Figure 1 of the drawing is a representation of my device in plan view,and Fig. 2 is a longitudina-l vertical section of the same.

The nature of my invention consists in the construction and arrangementof a car-brake, as will be hereinafter fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Arepresents the frame-work; B B, the wheels and C, the shaft or axle atone end of a car. D is an inclined screw, provided at its upper end witha hand-wheel, E, said screw passing through a box formed in the frame A,and having a collar, a, placed within said box, so that the screw cannotbe moved either up or down, although it can readily be turned in eitherdirection. The lower end of the screw D passes through a box, b, withfemale screw in the center of the brakebar G, upon each end of which isthe shoe e. Guide-rods d d also pass through the brake-bar G, said rodsbeing secured to the frame A and surrounded above the bar with spiralsprings j' j', as shown in Fig. l. The screw D is used to force thebrake against the car-Wheels.

The drawing accompanying this specilication and making a part thereofrepresents a subsidiary brake,A consisting mainly of a lever, bolt, andknuckle. This it is my purpose to illustrate and claim in anotherapplication to be hereafter iled,

and therefore do not claim the same in this patent; but

What I claim as my invention is- The combination of the inclined screwD, collar a, box b, brake-bar G, shoes e, guide-rods d, and spring f,constructed and arranged substantially as and for the purpose specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

J. FR. BRODE.

Witnesses:

JAMES B. COOK, H. F. SCHULZE. (122)

